ash/frame/header_painter_util.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_FRAME_HEADER_PAINTER_UTIL_H_
   6 #define ASH_FRAME_HEADER_PAINTER_UTIL_H_
   7
   8 #include "ash/ash_export.h"
   9 #include "base/macros.h"
  10
  11 namespace gfx {
  12 class FontList;
  13 class Rect;
  14 }
  15 namespace views {
  16 class View;
  17 class Widget;
  18 }
  19
  20 namespace ash {
  21
  22 // Static-only helper class for functionality used accross multiple
  23 // implementations of HeaderPainter.
  24 class ASH_EXPORT HeaderPainterUtil {
  25  public:
  26   // Returns the radius of the header's corners when the window is restored.
  27   static int GetTopCornerRadiusWhenRestored();
  28
  29   // Returns the default distance between the left edge of the window and the
  30   // leftmost view in the header.
  31   static int GetDefaultLeftViewXInset();
  32
  33   // Returns the amount that the frame background is inset from the left edge of
  34   // the window.
  35   static int GetThemeBackgroundXInset();
  36
  37   // Returns the bounds for the header's title given the views to the left and
  38   // right of the title, and the font used.
  39   // |left_view| should be NULL if there is no view to the left of the title.
  40   static gfx::Rect GetTitleBounds(const views::View* left_view,
  41                                   const views::View* right_view,
  42                                   const gfx::FontList& title_font_list);
  43
  44   // Returns true if the header for |widget| can animate to new visuals when the
  45   // widget's activation changes. Returns false if the header should switch to
  46   // new visuals instantaneously.
  47   static bool CanAnimateActivation(views::Widget* widget);
  48
  49  private:
  50   DISALLOW_IMPLICIT_CONSTRUCTORS(HeaderPainterUtil);
  51 };
  52
  53 }  // namespace ash
  54
  55 #endif  // ASH_FRAME_HEADER_PAINTER_UTIL_H_